Remove the battery cable from the negative terminal. Take note of the positions, then if so equipped, remove the spark plug wire clips from the valve cover stud. Remove the spark plug wires from the plugs, and place the wires out of the way. If installed, remove the diverter valve and hoses from the valve cover. For cruise control vehicles, remove the servo link from the carburetor or throttle body and remove the servo bracket. Take off the bolts or nuts that hold the valve cover down. Remove the valve cover from the head. If the cover becomes stuck to the head, bump one end with a wood block and hammer to jar it free. If that doesn't do the trick, try a flexible putty knife and slide it in between the head and cover to break the gasket seal. To install the covers, the mating surfaces of each cylinder head and valve cover must be completely free of grime. Employ a gasket scraper to eliminate all evidence of sealant or old gasket material and clean the metals with lacquer thinner or acetone. Make use of a die to clean the threads of the mounting bolt to remove the corrosion and restore the damaged threads. By all means, use a light oil on the bolt threads. The gaskets must be connected to covers before those covers are installed. Place the cover on the head cautiously and install bolts/nuts. Secure the bolts in a two-stage process. Let an interval of two minutes elapse between the first and second rounds of tightening. The winding installation steps are the reverse of removal. Observe Engine Carefully For Oil Leaks As The Engine Warms Up. Start The Engine.